1628449

Information

• Patent Grant
• 1628449

• References
• Source

• Patent Number

  1,628,449

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1927
  98 years ago

• CPC

  • E01B3/20 - Sleeper construction for special purposes

• US Classifications

  • 238 - Railways: surface track